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Improve file reading

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This commit is contained in:
Maschell 2022-08-09 16:02:38 +02:00
parent d5c54fed78
commit 72901bc7a5
1 changed files with 10 additions and 5 deletions
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15
src/utils/FileUtils.cpp
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@ -4,7 +4,6 @@
#include <malloc.h> #include <malloc.h>
#include <unistd.h> #include <unistd.h>
#define ROUNDDOWN(val, align) ((val) & ~(align - 1)) #define ROUNDDOWN(val, align) ((val) & ~(align - 1))
#define ROUNDUP(val, align) ROUNDDOWN(((val) + (align - 1)), align) #define ROUNDUP(val, align) ROUNDDOWN(((val) + (align - 1)), align)
@ -20,8 +19,13 @@ int32_t LoadFileToMem(const char *filepath, uint8_t **inbuffer, uint32_t *size)
return -1; return -1;
} }
uint32_t filesize = lseek(iFd, 0, SEEK_END); struct stat file_stat;
lseek(iFd, 0, SEEK_SET); int rc = fstat(iFd, &file_stat);
if (rc < 0) {
close(iFd);
return -4;
}
uint32_t filesize = file_stat.st_size;
auto *buffer = (uint8_t *) memalign(0x40, ROUNDUP(filesize, 0x40)); auto *buffer = (uint8_t *) memalign(0x40, ROUNDUP(filesize, 0x40));
if (buffer == nullptr) { if (buffer == nullptr) {
@ -29,7 +33,7 @@ int32_t LoadFileToMem(const char *filepath, uint8_t **inbuffer, uint32_t *size)
return -2; return -2;
} }
uint32_t blocksize = 0x20000; uint32_t blocksize = 0x80000;
uint32_t done = 0; uint32_t done = 0;
int32_t readBytes; int32_t readBytes;
@ -38,8 +42,9 @@ int32_t LoadFileToMem(const char *filepath, uint8_t **inbuffer, uint32_t *size)
blocksize = filesize - done; blocksize = filesize - done;
} }
readBytes = read(iFd, buffer + done, blocksize); readBytes = read(iFd, buffer + done, blocksize);
if (readBytes <= 0) if (readBytes <= 0) {
break; break;
}
done += readBytes; done += readBytes;
} }